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Codec: avc1.420420

87.29% Encoder Support
279,794 of 320,523 sessions supported encoding
99.94% Decoder Support
269,138 of 269,306 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,523 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.84% 143,796 / 144,032 99.93% 19,627 / 19,640 — 99.76% 63,628 / 63,782 98.98% 7,589 / 7,667
SafariSafari
 — 1.77% 153 / 8,626 1.55% 481 / 31,107 — —
EdgeEdge
 100.0% 31,012 / 31,013 99.73% 371 / 372 — 99.69% 964 / 967 96.88% 62 / 64
FirefoxFirefox
 96.24% 9,443 / 9,812 100.0% 1,286 / 1,286 — 0.0% 0 / 33 98.52% 1,261 / 1,280

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,306 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,433 / 121,469 99.92% 15,960 / 15,972 — 99.99% 53,697 / 53,704 99.12% 6,394 / 6,451
SafariSafari
 — 99.97% 7,246 / 7,248 99.97% 25,534 / 25,542 — —
EdgeEdge
 100.0% 27,070 / 27,071 100.0% 337 / 337 — 100.0% 892 / 892 98.25% 56 / 57
FirefoxFirefox
 99.99% 8,031 / 8,032 100.0% 1,069 / 1,069 — 0.0% 0 / 21 99.42% 1,037 / 1,043